20764245

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1777}}^1$

素因数の和:1845

約数の個数: 32

約数和(自身を含む): 35844480

約数和(自身を除く): 15080235

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 123, 205, 285, 615, 779, 1777, 2337, 3895, 5331, 8885, 11685, 26655, 33763, 72857, 101289, 168815, 218571, 364285, 506445, 1092855, 1384283, 4152849, 6921415, 20764245]

約数ペア:

[(1, 20764245), (3, 6921415), (5, 4152849), (15, 1384283), (19, 1092855), (41, 506445), (57, 364285), (95, 218571), (123, 168815), (205, 101289), (285, 72857), (615, 33763), (779, 26655), (1777, 11685), (2337, 8885), (3895, 5331)]